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Finding the Fourth Proportional to 80,171.91, 120,299.37 and 58,166.91

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Solution

The fourth proportional to 80,171.91, 120,299.37 and 58,166.91 is: 87,280.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,171.91 : 120,299.37 = 58,166.91 : x
  2. Step 2: Convert to fraction form
    80,171.91/120,299.37 = 58,166.91/x
  3. Step 3: Cross multiply
    80,171.91x = 120,299.37 × 58,166.91
  4. Step 4: Simplify right side
    80,171.91x = 6,997,442,337.01
  5. Step 5: Solve for x
    x = 6,997,442,337.01/80,171.91
  6. Step 6: Final answer
    x = 87,280.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.